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Spodumene and Axinite Optical Properties


Axinite and Spodumene Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Strong in kunzite: α-purple   
Strong   

Dispersion
0.02   
22
0.02   
21

Transparency
Transparent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.657-1.681   
1.656-1.704   

Optic Character
Not Available   
Biaxial/+   

Crystal System
monoclinic   
Triclinic   

Birefringence
0.014-0.018   
0.009-0.012   

Clarity
Gems   
TransparentUlrich Henn and Claudio C. Milisenda   

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Spodumene and Axinite Optic Character

Spodumene and Axinite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Spodumene and Axinite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Spodumene and Axinite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character. Axinite has Biaxial/+ character.

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Spodumene and Axinite Transparency

Similar to their colors, Spodumene and Axinite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Spodumene is Transparent while Spodumene is Transparent in appearance.

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